George dudley fort



G. D. FORT.

FLUSHING CISTERN. APPLICATION man APR.19,'19|9.

1,32 1 ,6 1 3 l Patented Nov. 11, 1919.

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J K E 1 l/ "F a ff@ ZV f N i DI Ef 'i 1 1257/672507 Georgeud/eyfgrf GEORGE DUDLEY FORT, 0F .AUCKLAI\TD, NEW ZEALAND.

FLUsHING-cisTEnN.

Specification of Letters Patent. Patented NOV. 11, 1919.

Application led April 19, 1919. Serial No. 291,317. v

To all whom t may concern.' Y 4 Be it known that I, GEORGE DUDLEY Fon'r, subject of the King of Great Britain, residing at Cromwell Road, Mount Eden, Auck-y land, New Zealand, have invented new and useful Improvements in Flushing-Cisterns; and I do hereby declare the following to be a full, clear, and exact description of the same.

This invention has been designed in order to provide improvements in the construction of flushing cisterns of the ordinary type by means of which the cistern is made more adaptable for use in connection with ships water closets. These cisterns, as at present constructed, can not be used satisfactorily in such connection as the movements of the ship, especially in rough seas, tend to disarrange the parts and also to cause a wash or agitation of water in the cistern that leads to its splashing over and also to help such disarrangement of the parts.

The present invention provides by its construction against any disarrangement of the parts or any movement or agitation of the water in the cistern through the changes in position assumed by the cistern in the movements of the ship and thereby provides for the satisfactory use of this class of flushing apparatus in ships.

To obtain Jthese objects the cistern is provided with a cover that is of such a depth as to extend to the level of the water provided for by the float valve, and which cover is formed with recesses in its underside to receive the ball of the float valve and the top bend of the discharge siphon, which necessarily extend to higher levels than the topmost level of the water. It is also provided with an opening through it to permit of the passage of the discharge valve lifting chain, and this valve is arranged within a guide or sleeve that keeps it in position above its seat in all circumstances. The 4cistern is also provided with a divisional plate extending across it, at its middle, this plate Vhaving a vertical slot to act as a guide for the lever of the float valve and thereby to keep such valve from lateral movement, while the plate itself serves to assist in keeping the water in the cistern from being agitated.

The invention is illustrated in the accompanying drawings, in which Figure l is a longitudinal section of the cistern showing the improvements.

Fig. 2 is a cross section thereof onthe line 2-2 lof Fig. l and looking-in the direction of the arrow. y A

A is the cistern which is provided with thekusual valve B controlling the inlet from the main lB"and lever and ioat C operating such valve, and also with the usual siphon discharge D having its voperating valve D.

A t In this Vinvention this valve is surrounded by a cylindrical lDruide E fixed to the valve seat and serving to hold the valve from any lateral movement while allowing it to rise and fall to perform its usual functions. The valve is thus maintained on its seat under all circumstances and variations in the angle of the cistern.

F,is the cover which is made to form a watertight yjoint vwith the top and is shaped so that it dips into the cistern with a flat surface, that is on the level of the water in the cistern when it is full and as regulated by the float valve. G is the recess in the underside of the cover made to allow of the float C rising on the water to the necessary height to provide for the level reaching the underside of the cover, and H is the recess to provide for the bend of the siphon being carried above the water level, as is required in the working of the siphon.

J is a small sleeve running down through the cover through which the chain K for attaching the lever M t0 the operating valve D, is carried. This lever M is pivoted on the top of the cover in any approved manner.

N is the division plate extending across the cistern at its middle and serving to divide the cistern into two chambers. This plate is formed with a slot N extending down it and the float lever of the inlet valve B passes through the slot which therefore acts as a guide to retain it from side sway. The slot also acts as a passage for the water from one compartment to the other in the discharging and filling operations of the cisterns.

It will be seen that by dividing the cistern into two and by forming the cover so that it engages the top surface of the water, no relative change of the water in the cistern can take place in the variations'in the angle of such cistern. Consequently the cistern is in a condition for working properly under all varying circumstances of this nature. The other constructional improvements providing as they do for the parts hein'gkept in proioer:"position"also ssist in I this lsatisfactory Working of the'flushrat all inletfvalve lever and the top hend of the y disch'rge siphonw'substantially as and for *the purposes herein specified.

I `21`In flushingcisterns, afdivisionaliplate .extendingztoross thejrniddie ofthe ycisternl y end fornied VWithrre, Vertical slot therein through which the non 1evee0f the inlet .Valve passes in combination With a cover fitting over the top ofthe cistern and shaped tol enter such top andengage With the sury face ofthe Water when the cistern is full and. having recesses in its underside to receive the Hoet of the inlet Valve and the top bend of the discharge Siphon, substantially as and for the purposes herein specified.

' In testimony whereof I have signed this specification in the presence of two subscribingfwitnesses. l

GEORGE DUDLEY FORT. Witnesses: A, E. HUGHES, v

L. HUMrHREYf y Gopisjilf:this4 paltenfmgyrbe'obtained forni/ e cents each, by addressing the "Commissioner of Patents,

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